Thanks DevBiker,
The bleed over is consistent. The first fan is correct. Each subsequent fan has segment of color that is from the previous fan.
#1 is OK
#2 has some of #1
#3 has some of #2
#4 has some of #3
#5 has some of #4
#6 has some of #5
(determined by setting all to a different static color)
I said "essentially" just because the visual nature of the error displays differently depending on effect (Visor, Arc, etc). Static is just easiest on photos
I can reorder the fan plug in order and the error remains (but out of order since it I am not remounting the fans proper).